Akane Shimizu

Akane Shimizu is a Japanese manga artist, born in Tokyo on January 28, 1994. She is the creator of Cells at Work!, the anthropomorphized biology comedy that has run in Kodansha's Monthly Shonen Sirius since 2015 and has been adapted into anime, a stage play, and a live-action film.

Shimizu's series turns the human body into a workplace, with red blood cells, white blood cells, and platelets handling infections and injuries as if they were office tasks. The 2018 anime brought the work to a global audience, and the franchise has since expanded into multiple spinoffs, including the darker Cells at Work! Black. Through 2026, the property remains active, with a dental spinoff announced in September 2026 and a kabuki stage adaptation scheduled for April 2027.

Her public profile changed sharply in mid-2026, when she disclosed on X a history of abuse, harassment, and mental-health struggles during her years with Kodansha. The allegations prompted a public apology from the publisher in July 2026 and a wider conversation among manga artists about editorial treatment. She remains the sole credited creator of the original Cells at Work! manga. [edit]

Akane Shimizu trained at Japan Manga Gakuen, a vocational school in Tokyo, where she completed the special training course as a member of class 13. The program is one of the established routes into the Japanese manga industry, and her time there gave her the foundational drafting and storytelling skills she would later apply to a series about immunology.

Her professional entry came through a contest rather than an assistant position. She entered the 27th Sirius New Age Award, a newcomer competition run in connection with Kodansha's Monthly Shonen Sirius, and won the top prize for best newcomer manga. The award carried with it the opportunity to debut, and she used it to launch Cells at Work! in the same magazine in 2015.

Little is documented about her childhood or family background before that point. She has not given extensive interviews about her upbringing, and the sources that discuss her early life focus on her schooling and the contest win. The scientific precision of the manga has led some readers to speculate that she has medical training, but no source confirms a medical degree or clinical career; the accuracy is generally attributed to research and careful consultation rather than professional practice. [edit]

Cells at Work! began serialization in Kodansha's Monthly Shonen Sirius in 2015, following Shimizu's win at the 27th Sirius New Age Award. The premise, in which the cells of the human body are depicted as workers in a vast industrial organism, proved adaptable. A 2018 anime adaptation by David Production brought the series to international streaming audiences and turned characters such as the platelet crew into widely shared fan imagery.

The franchise expanded steadily after the anime. A second season aired in 2021, and a compilation film, Hataraku Saibō!! Saikyō no Teki, Futatabi. Karada no Naka wa Chō Ōsawagi!, was released in 2020. A live-action film followed in 2024, with Shimizu credited as the source creator. The darker spinoff Cells at Work! Black, written by Shigemitsu Harada and illustrated by Issei Hatsuyoshi, extended the property into a story about an unhealthy body, and a stage play was also produced.

Activity continued into 2026 and beyond. The spinoff Cells at Work! Cat concluded on March 30, 2026. A dental spinoff manga was announced on September 28, 2026, and a kabuki stage adaptation was set for April 2027, announced in August 2026. Shimizu also took part in a promotional speed-painting session using Clip Studio Paint on November 4, 2018, footage of which circulated through the software's official channels. [edit]

For most of her career Shimizu maintained a deliberately low public profile. She gave few interviews, appeared rarely in promotional material, and let the series and its adaptations carry the public-facing work. That changed in 2026, when she began posting a detailed chronological account on X, using the platform to speak directly rather than through publishers or intermediaries. The shift moved her public image from anonymous creator to a named figure in an industry conversation about editorial treatment.

Her visual identity as an artist is tied to the clean, rounded character designs of Cells at Work!, particularly the platelet characters, whose small stature and oversized caps became one of the most recognizable images associated with the series. Media coverage of her in 2026 has focused on her statements and the industry response rather than on her personal style, which she has not cultivated as part of her public presence. [edit]

iFANN has not yet gathered fame data for Akane Shimizu, so no ranking placement is available for her. She does not appear on the September 2026 iFAMOUS Rankings flagship list.

What fame she has is tied closely to a single property. Cells at Work! built an international audience through its 2018 anime, and the fanbase around it is organized around the series rather than around Shimizu as a personality. There is no documented fandom name, and fans do not have a formal collective identity the way followers of some manga artists do. The audience skews toward readers and viewers interested in science communication, and the series has been used in classrooms and recommended by educators for making immunology approachable.

Fan activity has centered on the characters, particularly the platelets, whose appearances in the anime produced a wave of fan art and merchandise. The property's reach is broad but diffuse: it is known as a title, not as the work of a visible author. That changed somewhat in 2026, when her disclosures on X drew attention to her personally and prompted fellow manga artists to speak publicly about their own experiences with editors. The response showed that her name carries weight within the industry even where it was not widely recognized by general audiences before. [edit]

Shimizu's speed-painting session for Clip Studio Paint, recorded on November 4, 2018, remains one of the few pieces of footage showing her at the drawing board.

Readers have long speculated that she must have a medical background, given how precisely the manga handles immunology and hematology. No source supports that; she is a manga-school graduate, and the accuracy is attributed to research.

The franchise's expansion has been unusually literal. It has produced a cat spinoff, a dental spinoff announced in September 2026, and a kabuki stage adaptation scheduled for April 2027, a range of formats that few contemporary manga properties have matched.

Her given name, 茜, is written with the character for madder red, and her family name, 清水, means clear water. [edit]

Shimizu has kept her family life out of public view for most of her career. In June and July 2026, however, she disclosed that she had become estranged from her family and that she had experienced financial and sexual victimization at the hands of relatives. She also described secondary victimization from family members after she began speaking about those experiences. She has not named the relatives involved and has not disclosed details about her parents or siblings. No spouse, partner, or children are publicly documented. [edit]

No public romantic relationships, marriages, engagements, or children are documented for Akane Shimizu in any credible source. She has kept her private life out of the public record throughout her career, and the disclosures she made in 2026 concerned family and abuse rather than romantic partnerships. As of 2026, her relationship status is not publicly known. [edit]

No credible net-worth figure for Akane Shimizu appears in public sources. Celebrity net-worth trackers do not list her, and Japanese publishing disclosures do not report individual manga artist earnings. The iFANN Editorial Team has not produced an estimate, and any figure presented here would be speculation rather than research.

What can be said is that her income derives from a single major property. Manga royalties in Japan are typically calculated on volume sales, and Cells at Work! has run for multiple collected volumes since 2015. Anime and film adaptations generate licensing fees, and the live-action film released in 2024 would have added a further licensing stream. Spinoffs such as Cells at Work! Black and the announced dental spinoff involve separate creative teams, and the terms under which the original creator participates in those are not public.

Merchandise, including the platelet character goods that became a notable seller after the 2018 anime, adds another revenue channel, though the split between creator and publisher is not disclosed. The 2026 allegations against Kodansha included complaints about improper crediting, which suggests that at least some of her contractual arrangements were disputed. No settlement figures have been made public.

As of 2026, no verified estimate exists, and iFANN does not publish a number for her. [edit]